Heater



F. STORMS Jan. 19, 1932.

HEATER Filed March 2'1, 1950 5 m5 5 V my M BY mfg,

ATTORNEYS,

Patented Jan. 19, 1932 onrreo stares r-ATENT oFF c i rnnnnnrcx scion-Ms,on NEW Yon-it, N. Y., nssrenon or ONE-HALF TO PHILIP Josnrn, on newYonK. N. Y. i

HEATER Application filed March 21, 193th Serial No. 437,831.

This invention relates to fluid heaters. It is among the Ob ects of thepresent 1nvention to provide a novel and improved 'fluid heaterparticularly adapted to utilize hot waste gases for the preheating ofboiler water.

A further object of the present invention is to provide a novel andimproved preheater adapted to be positioned within a boiler flue,whereby the passage of hot waste gases through the flue will have heatexchange relation with the heater, thus to raise the temperature offluid therein.

A further object of the present invention is to provide a preheaterincluding a plurality of narrow sections having enlarged surface areas,the arrangement being such that by the positioning of a preheater in awaste gas flue, a large heat exchange area is presented to the gases asthey pass therethrough,

and, at the same time, a minimum resistance to the gases'is rovided.

A further object of the present invention is to provide in a preheater athin fiat section through which a single pipe passes to provide for theadmission of and discharge of fluid from the heater, the pipe beingcentrally divided and h'avin openings in its side wall, whereby fluidwill be caused to.

pass from the pipe through the side wall to circulate through thesection before being delivered through the discharge end'of the pipe.

Other obj ects of the present invention will be apparent from aconsideration of the following' specification taken in conjunction withthe accompanying drawings, in which Figure 1 is a side elevation partlyin section, showing oneforni of the present invention applied in thewaste gas flue of a boiler;

Fig. 2 is a invention;

Fig. 3 is a vertical longitudinal section through one of the sections ofthe heater;

' Fig. 4 is a sectional view on the line %4 of Fig. 3. 1

By referring more particularly to Fig. 1 of the drawings, it will beseen that the invention is particularly adapted for positioning within awaste gas flue 10, which leads to perspective view of the present achimney 11, the gases being discharged through the flue from a boilergenerally indicated by-the numeral 12. The preheater assembly isindicated by the numeral 13 and may be connected by a suitable pipe lttothe upper end of the boiler and through pipe 15 tothe lower sideof theboiler.

Inthe operation of the device, it will be understood that beforetheadmission of fluid to the boiler 12,-it isadapted to pass through theunit 13, thus to accumulate heat from the waste gases passing throughthe flue lO. Considerable heat energy is thus saved by clelivering thefluid to'the holder at a substan tially raised temperature.

By referring more particularly to Fig. 2; it will .be seen that thepreheater consists of a pluralityof sections 16.: As shown in Fig. 4,each section is relatively narrow and tapers to a point at the end, thusbeing of an elongated diamond shape in cross section. By positioning thesections 16 longitudinally of the flue 10, as indicated in Fig. 1,minimum resistance to the passage of waste gases therethrough isprovided and, at the same time, a large heat exchange surface area ofthe sections is'presented to the gases. The arrange:- ment is seen toprovide substantially streamline characteristic-sic! the sections 16.EX- tending verticallythrough the central portion. otieach section 16,as indicated in Fig. 3, a single pipe 17 is provided. The pipe 17 has acentral bathe or wall 18 above andbelow which. apertures 19 in the sidewalls of thepipe are provided. By this arrangement, it will be seen thatfluid entering oneend of the pipe 17 will be blocked by the baflle 18;against passing directly therethrough, and the fluid will be caused topass through the side apertures 0t thetube as indicated bythe arrows inFig; 3, thus circulating through the narrow portions of the sections 16,whereby rapid heat pressure is provlded, thus to permit the fluid toaccumulate heat from the:

waste'gases passing through'the flue. As fur- I ther indicated by thearrows in Fig. 3, the

vention is not confined to the direction of flow through the sections16.

From the foregoing it will readily be seen that the invention provides asimple heat exchange device which provides minimum resistance to thenormal discharge of waste gases, while, at the same time, presentinglarge surface areas for heat exchange relation therewith. It will beunderstood that the invention is not specifically confined to detailstructural features herein shown but that numerous changes,modifications and the full use of equivalents may be resorted to withoutdeparting from the spirit or scope of the invention as outlined in theappended claims.

\Vhat is claimed is:

1. A heater including a plurality of relatively narrow sections adaptedto be arranged within a waste gas flue for heat exchange relation withgases passing through said flue, said sections being substantiallyelongated diamond shaped in cross section, an apertured fluid conductorextending through each of said sections and tubular means connecting theconductors so that they will act in multiple for the passage of fluidinto and out of said sections.

2. A. heater including a plurality of relatively narrow sections adaptedto be arranged within a waste gas flue for heat exchange relation withgases passing through said flue, said sections being of streamlineconfiguration to provide minimum resistance to gases passing thereover,an apertured fluid conductor extending through each of said sections, abafile arranged substantially centrally of each of said conductors sothat fluid passing through the conductors will pass through certainapertures into said sections and through certain apertures from saidsections, back into the tubular conductors, and tubular means at eachend of said conductors connecting the conductors so that they will actin multiple for the passage of fluid.

3. A heater including a plurality of relativelynarrow sections adaptedto be arranged within a waste gas flue for heat exchange relation withgases passing through said flue, and a single pipe extending througheach of said sections for supplying and discharging fluid thereto.

4. A heater including a plurality of relatively narrow sections adaptedfor heat, and a single pipe extending through each of said sections forsupplying and discharging fluid thereto, said pipe including sideapertures and central baiiie adapted to prevent the di root passage offluid through said pipe.

Signed at New York city, in the county of New York and State of NewYork, this 19th day of March, 1930.

FREDERICK STORMS.

